diff options
Diffstat (limited to 'gcc/tree-complex.c')
| -rw-r--r-- | gcc/tree-complex.c | 62 |
1 files changed, 54 insertions, 8 deletions
diff --git a/gcc/tree-complex.c b/gcc/tree-complex.c index 1fa76a9..a4c7329 100644 --- a/gcc/tree-complex.c +++ b/gcc/tree-complex.c @@ -150,7 +150,7 @@ init_dont_simulate_again (void) basic_block bb; block_stmt_iterator bsi; tree phi; - bool saw_a_complex_value = false; + bool saw_a_complex_op = false; FOR_EACH_BB (bb) { @@ -159,21 +159,62 @@ init_dont_simulate_again (void) for (bsi = bsi_start (bb); !bsi_end_p (bsi); bsi_next (&bsi)) { - tree stmt = bsi_stmt (bsi); + tree orig_stmt, stmt, rhs = NULL; bool dsa = true; - if (TREE_CODE (stmt) == MODIFY_EXPR - && is_complex_reg (TREE_OPERAND (stmt, 0))) + orig_stmt = stmt = bsi_stmt (bsi); + switch (TREE_CODE (stmt)) { - dsa = false; - saw_a_complex_value = true; + case RETURN_EXPR: + stmt = TREE_OPERAND (stmt, 0); + if (!stmt || TREE_CODE (stmt) != MODIFY_EXPR) + break; + /* FALLTHRU */ + + case MODIFY_EXPR: + dsa = !is_complex_reg (TREE_OPERAND (stmt, 0)); + rhs = TREE_OPERAND (stmt, 1); + break; + + case COND_EXPR: + rhs = TREE_OPERAND (stmt, 0); + break; + + default: + break; } - DONT_SIMULATE_AGAIN (stmt) = dsa; + if (rhs) + switch (TREE_CODE (rhs)) + { + case EQ_EXPR: + case NE_EXPR: + rhs = TREE_OPERAND (rhs, 0); + /* FALLTHRU */ + + case PLUS_EXPR: + case MINUS_EXPR: + case MULT_EXPR: + case TRUNC_DIV_EXPR: + case CEIL_DIV_EXPR: + case FLOOR_DIV_EXPR: + case ROUND_DIV_EXPR: + case RDIV_EXPR: + case NEGATE_EXPR: + case CONJ_EXPR: + if (TREE_CODE (TREE_TYPE (rhs)) == COMPLEX_TYPE) + saw_a_complex_op = true; + break; + + default: + break; + } + + DONT_SIMULATE_AGAIN (orig_stmt) = dsa; } } - return saw_a_complex_value; + return saw_a_complex_op; } @@ -189,6 +230,8 @@ complex_visit_stmt (tree stmt, edge *taken_edge_p ATTRIBUTE_UNUSED, /* These conditions should be satisfied due to the initial filter set up in init_dont_simulate_again. */ + if (TREE_CODE (stmt) == RETURN_EXPR) + stmt = TREE_OPERAND (stmt, 0); gcc_assert (TREE_CODE (stmt) == MODIFY_EXPR); lhs = TREE_OPERAND (stmt, 0); @@ -308,6 +351,9 @@ create_components (void) size_t k, n; n = num_referenced_vars; + if (n == 0) + return; + complex_variable_components = VEC_alloc (tree, heap, 2*n); VEC_safe_grow (tree, heap, complex_variable_components, 2*n); |